Powerstream Screw WTER COOLED DUL-CIRCUIT SCREW CHILLERS INDUSTRY BENCHMRKING COMPRESSORS DUL REFRIGERNT CIRCUITS EXCELLENT EFFICIENCY WITH EER UP TO 5.58 LOW OVERLL TCO 600-100 R134a SCREW WTER COOLED WWW.KLTR.DE R134 FREECOOLING
Unsurpassed sustainability EQUIPPED WITH DUL REFRIGERNT CIRCUIT, POWERSTREM SCREW CHILLERS COVER COOLING CPCITY FROM 600KW TO 100KW WITH MODULTION IN THE RNGE OF 5-100%. INSTLLED SCREW COMPRESSORS FETURE SLIDER CONTROL TO CHIEVE HIGH LEVEL OF EFFICIENCY T LODS OF 60 TO 100 PERCENT Whether the facility is an industrial plant, coercial building, or data center, water chiller fits your unique needs. Engineered to deliver top performance and combined a set of benefits like sustainable design and low maintenance cost, chillers are proven performers with unsurpassed energy efficiency and proven reliability. Powerstream FETURES & DVNTGES SCREW COMPRESSORS WITH SLIDER CPCITY CONTROL ENHNCED PRT LOD EFFICIENCY FETURE-RICH CONTROL SOFTWRE HIGH SESONL ENERGY EFFICIENCY LOW OPERTING COSTS PROVEN RELIBILITY Dry cooler selection We recoend using Bora or Mistral series dry coolers with Powerstream chillers. These dry coolers are optimized for water-cooled chillers, offer high performance and enable low water temperature difference. Bora series is well-suited for urban locations due to their low sound emission, as well as for high-polluted areas and coastal installation due to the high corrosion resistance of microchannel heat exchangers used in the unit design. For the installations in hot climate zones, we recoend Bora dry coolers with evaporative pads. Mistral series dry coolers equipped with finned tube heat exchangers with internally grooved copper tubes and are ideal for any kind of industrial and coercial applications. Both dry cooler series feature low operating costs and superb efficiency. +49(0)911 715 301
Smart compressors Integration to BMS Cost-efficient solution for both full and part load conditions C Intelligent, centralized chilled water plant control Powerstream's compact semi-hermetic screw compressors are distinguished by a further improvement in energy efficiency at full and part load conditions. ccordingly, these compressors exceed the international efficiency standard of compact screws with respect to the seasonally weighted energy requirements to an even higher degree than before. This results in particularly high ESEER/IPLV and SCOP values. The control hub of Powerstream chillers is a sophisticated controller with advanced software developed for efficient operation of water-cooled chillers. It manages and optimizes the chiller s performance, giving the complete control over the system for plant operator. Control software can be directly linked to the existing building management system. Integration with a BMS allows collecting and analyzing operating data of chilled water plant and helps to maintain optimal equipment settings, saves energy, identifies trouble-prone areas, provides maintenance schedules and generate safety and security alarms. The cooling capacity of the compressor is controlled by a slider which allows an adaptation of the compressor displacement to the power requirement by shifting the start of the compression process through an axial movements of the control slider. The slider, starting from the full load position (100% )can be positioned to nominal 75%, 50%, and 5%. C For the efficient operation of multiple units on a single chilled water plant, the sequencing software permits interlinked operation of the complete system, thus providing optimal temperature control and minimal energy consumption. Compressor efficiency by capacity 9 8 6 6 5 Coefficient of performance (COP) Compressor COP EEVs Conditions @ 100% capacity: 5ºC - evaporating temperature 38ºC - condensing temperature 5K - superheat K - subcooling The electronic expansion valve (EEV) reduces the need for high head pressure when running at lower than nominal ambient conditions. Capacity (%) 0 0 40 60 80 100 ESEER D B 6.0 B D Evaporator DOPTED FOR PRT LOD CONDITIONS OPTIMIZED FOR R134 REFRIGERNT LLOWS HIGH EVPORTION TEMPERTURES The shell and tube evaporator used in Powerstream design offers extremely high evaporating temperatures for a given supply water temperature and optimized for R134a refrigerant. Heat transfer rate of the evaporator enhanced with internal refrigerant side tube grooving and optimally positioned baffles. The tube bundle composed of a series of pre-modeled U-shaped tubes enabling the free expansion of the whole unit independently from the shell. Internal baffles in the water circuit optimize the flow whilst keeping pressure drop to a minimum. Reduced baffle spacing ensures high heat transfer at low flow rates, as well as for brine operation. +49(0)911 715 301 EEV is controlled by a driver which regulates its opening according to the performance levels required by the system and guarantees the minimal overheating under all operating conditions. Due to superior control characteristics of EEV, Powerstream chillers demonstrate the energy savings of up to 5%. SVINGS E 5% Condensers E OPTIMIZED FOR R134 REFRIGERNT HIGH PERFORMNCE ESY OF MINTENNCE features newly developed shell-and-tube condensers optimized for R134a refrigerant to provide the best possible efficiency. With high-performance tubes, new baffle design and shell, these condensers provide maximum efficiency with a low cost per, as well as shorter length and reduced weight. chillers are equipped with two refrigerant circuits each connected to its own shell-and-tube condensers. This design enhances reliability and allows chiller maintenance to be performed without shutting it down completely, as well as the maintenance of connected cooling tower or dry cooler. Therefore, 60% of the design capacity will remain in service in the periods of maintenance.
Technical Specifications Model S600 S700 S800 S900 S1000 S1100 S100 Frame size F/ F/ F/ F F/ F F/ F F/ F F/ F Cooling capacity1 65 70 815 960 1065 115 1160 / 5.58 5.45 5.58 5.5 5.38 5.36 5.35 ESEER 6.0 6.18 5.97 5.9 IPLV (RI 550/590) 6.55 6.54 6.54 6.46 6.45 6.51 6.1 400 4050 4330 5440 5460 5570 5650 5.0 100.0 5.0 100.0 5.0 100.0 5.0 100.0 5.0 100.0 5.0 100.0 5.0 100.0 Energy efficiency (EER) Net weight kg Compressors Compact screw Quantity Capacity modulation % Power input 11 13 146 174 198 10 17 186 5 59 84 3 335 354 Water flow 108 13 140 165 183 193 199 Pressure drop kpa 5 8 3 18 4 5 Max water flow 143 154 174 0 0 45 67 Water volume L 46 37 98 357 38 bsorbed current Evaporator Flooded shell-and-tube Condenser Shell-and-tube Water flow 16 16 163 30 Pressure drop kpa 1 49 39 46 3 40 34 Max water flow 16 16 163 84 84 Water volume L 10 10 155 180 180 Refrigerant circuit R134a Quantity Refrigerant charge kg 156 16 16 1 1 (1) Water 100%; Chilled water temperatures: 7/1 C; Condenser water temperatures: 30/35 C Package, options and accessories Description General nti-vibration mounts Noise reduction enclosure Noise absorption shells on compressors Brine 0 C to -6 C Brine 0 C to -1 C Thermal insulation Discharge check valve Service valves on liquid/gas lines Temperature probes on evaporator inlet/outlet Electronic expansion valve Water flow switch (loose) Temperature probes on condenser inlet/outlet Oil separator Safety valves on liquid/gas lines Pressure transducers on high/low refrigerant sides Oil flow switch Refrigerant leak detection Economizer BMS connectivity GSM connectivity Remote monitoring SNMP connectivity Energy monitoring Touchscreen HMI Waterside/Refrigerant side Electric and controls Standard feature Optional feature Model identification Compressors type S F / Frame size Length Width Height S Compact screw 3495 1075 1795 F 385 175 1995 F Flooded shell-and-tube Nominal capacity Evaporator type 800 Frame sizes Compressors No. of compressors Refrigerant circuits No. of refrigerant circuits +49(0)911 715 301